Carbureter.



E. E. WINKLEY.

CARBURETER.

APPLICATION FILED FEB. 26, |912. e

Patented Sept. 18, 19172.

3 SHEETSSHEE l.

1&40381 e E. E. WINKLEY.

CARBURETER. APPLICATION FILED FEB. 25.1912.

@.M. Patented sept. 18,1917.

3 SHEETS-SHEET 2.

E. E. WINKLEY.

CARBURETER. APPLICATION FILI-:D FEB. 26, I9I2.

1 ,240,28 l Patented Sept. 18, 1917.

3 SHEETS-SHEET 3- IWW?.-

UMTEB STATE@ PATENT FFQE.

ERASTUS E. W'INKLEY, OF LYNN, MASSACHUSETTS.

CARBURETER.

nemesi.

Application filed February 26, 1912.

To all LU/0m t may concern:

Be it known that I, ERAS'rUs E. 1lNINKLEY, a citizen of the UnitedStates, residing at Lynn, in the county of Essex and State ofMassachusetts, have invented certain new and useful tmprovementsinCarbureters; and I do hereby declare the following to be a full, clear,and exact description ofv the invention such as will enable othersskilled in the art to which it appertains to make and use the same.

The present invention relates to carbureters, and more particularly tothat class of devices which are employed for the carbureting orvaporizing of hydro-caribous or other liquid fuels for use in connectionwith internal combustion motors.

Internal combustion motors as at present constructed are commonly set inoperation by giving a fe'w rotations to the crank shaft either by handor by means of some auxiliary starting device, during which rotations anexplosive mixture is drawn from the carbureter into the cylinders of themotor where it is ignited, starting the motor in its regular operation.Considerable difficultv has been experienced, particularly in coldweather and with the lower grades of fuel and thc'larger lsizes of motorin vaporizing a sufficient amount of the liquid fuel in thesepreliminary rotations of the crank shaft to form a mixture rich enoughto be ignited. The principal object of the present invention is toprovide a carburetery which is particularly designed to facilitate thestarting of the motor by insuring the supply of combustible or explosivemixture at low temperatures and with the less vola- -tile grades of fueland practically irrespective of the speed of rotation imparted to the`crank shaft.

lith this and other objects in view hereinafter to be referred to, thepresent invention consists of the devices and'eombinations of deviceshereinafter described and more particulaly defined in the claims.

Fifure l a front elevation of m improved carburetor;

Fig. Q is a bottom plan view of the same; Fig. 3 is a vertical sectionon line 3 3, Fig. 2, looking in the direction of the arrows; and i Fig.4 is a vertical section on lines 4 4, looking in the direction of thearrows. In the specific form of carbureter illustrated in the drawings,11 is the chamber l Spe'ccation'of Letters Patent.

Eatented Sept. 18, 1917.

seran No. 679,853.

located in the lower portion of the carbureter and provided with thefuel nozzle 12 having the annular orifice 13. Fuel is supplied to thenozzle through the passages 14 from a float chamber l5 in which the fuelis maintained at a substantially uniform height by means of a hollowfloat 1G and fuel valve 17 which controls the admission of fuel fromythe supply pipe 18. The escape of fuel through the annular orifice 13 isregulated by means of the needle valve 19, the shank of which projectsthrough the bottom of the carburetor at 21 and is provided with the locknut to hold the valve in its adjusted position. A

Air is supplied to the carbureter through the air intake pipeZ-lprovided with the holes or ports 25,-tlie passage from the intakepipe to the carburetor being normally free and unobstructed; The bottomof the carburetor is provided with a depression adjacent the intake pipefor a purpose shortly to be made clear. An auxiliary supply of air isprovided through the auxiliary air port 2G controlled by the valve 27fixedly secured upon the oscillating shaft Q8 by means of the lnaeketQ9. The shaft 28 is mounted in the bearings 3l and carries at its upperend rigidly secured thereto the cam-shaped arm 32 which is engaged byone arm 33 on pivoted bell crank lever 3%, the other arm 35 of which ispressed toward the left, as shown in Fig. 2, by means of thespring-pressed rod 36, 'one end of which bears against the lever whileythe other is free to slide within the thumb nut 37 which serves as anadjustable abutment for the spring 38, being adjustably-mounted in thepivoted bracket 39. This mechanism ytends normally to hold the auxiliaryair valve 27 closed but permits said valve to open, whenever the suctionor degree of vacuum within the carburetor reaches an amount sufficient.to overcome the compression of spring 3S.

T he gaseous mixture is delivered from the earbureter through the outletport 4l at the top of the carbureter, as viewed in Fig. 1, and adjacentsaid port is located the throttle 42 which is in the form of a butterflyValve rigid upon a valve spindle 43 and adapted to be actuated by meansof the arm 44 secured to the spindle by the set screw 45. The arm 44Chas projecting from it and at right angles to one another the twoshorter arms 46 and 47 carrying the stop screws 48 treme right-handposition, leaving the air holding the auxiliary air valve closed.

and lf) respectively, which are adapted to engage opposite sideswotmtheabutment or lug 5l and limit .the rotation of thewialve 'n spindle inboth directions.

In order to facilitate the production of an explosive mixture the airintake pipe 24 has been provided with the air intake valve mounted uponthe rod 53 and adapted tov be moved from the position shown in brokenheavy lines inFig. l to the position shown in dotted outline in saidligure and v in full linesv in Fig. 3. Thisvalve is pro.L vided with anair passage orr critica-5ft ad jacent-.its bottom edge'andwithcideiector55 to defi'ect the air passing through said oriiice downwardly into thedepressed bottom of the carbureter. The valve 52 and rod 53 are adaptedto be actuated by thi` operator from any convenient point through thelink 56 and other suitable connections.

.In order to hold the auxiliary air valve 27 closed When the valve 52 isin, the position illustrated in Fig. 3, the' lower end of shaft 28 hasbeen provided with the finger 57 rigidly secured thereon adapted to been gaged by the end of lever 58 'pivoted upon stud 59 and connected atits lower endl through the link 6 1, rod 62, and arm 63 with the valverod '53 and actuating link 56 for the air intake valve 52. When the link56 is moved to the left, as shown in Figs l, 2 and 3. the free end oflever 58 is swung to the right as viewed in Fig. 2, closing theauxiliary air valve 27 it it should be open and holdingit closed so longas the valve 52 is in position shown in Fig. Then the vconnecting link56 is moved in the opposite direction the valve 52 will be carriedbeyond the apertures 25 in the air intake pipe and the auxiliary airvalve 27 will be rendered free to open if the suction within thecarbureter is sufficient.

In the normal operation ot a motor the actuating link 56 will beretained in its exintake pipe unobstructed and the auxiliary air valvefree to open. The liquid fuel within the nozzle 1.1 will be drawnthrough the annular orifice 13 and vaporized by the airk passing`through the carbureter, theamount of fuel delivered being regulated bythe needle valve, l), and an excessive suction and .an over supply beingprevented by the auxiliary air valve 27.

iVhen it is desired to start the motor in operation the link 56 will bemoved toward the left, thereby throttling the supply of air throughintake pipe 2li, at the same time If, now, the crank sha tt ot the motorbe given a tow preliminary rotations either by hand or by nir-,ans ofsome auxiliary starting dcvice, an yalniormally high degree of suctionor vacuum is produced within the carbureter, causing the liquid fuel toescape freely the coldest weather or with a low grade of fuel, andpractically irrespective of the speed `of rotation of the crank shaft.

RAS soon as the'motor is started in operationihe actuating link 56 maybe moved to the riglit either part way or to the limit of its movement,as circumstances may require. then it is desired to stop the motortemporarily, a rich explosive mixture may be left in the cylindersmerely by moving the connecting link 56 to the lett just before the mtoris stopped.

l tis to be understood that my invention is-not limited to any of thespecific features of construction illustrated and described except whereso expressly delined in the claims, but may be embodied in many otherforms and arrangements.

Having thus described my invention, what l claim is:

1. A carbureter, having, in combination, a chamber provided with adepressed bottom to retain fuel and with an air inlet at one side of thechamber adjacent the depressed bottom, a valve normally held in lixedposition and adjustable by the operator to a .position to substantiallyclose the air inlet,

sage adjacent the depressed bottom oithe chamber and with a downwardlyprojecting lip adjacent the air passage to detlectthe air downwardly into the depressed bottom, and means for supplying fuel to the chamber,substantially as described;

2. A carbureter, having, in combination, a chamber provided with adepressed bottom to retain fuel and with an air inlet at the side ot thechamber adjacent the depressed bottom, an air intake pipe connected withthe air inlet and provided With an air port in the side thereof,- apiston valve mounted in said pipe and normally held in fixed positionat. one side otl said air port to permit air to pass freely trom saidport through the air inlet, and movable to a position between said airport and the air-inlet, the valve being provided with an air passageadjacent the depressed'bottom, means for adjusting the position of thevalve, and means for supplying tuel to the chamber, substantially asdescribed.

A carbureter, having, in combination, a chamber provided with an airinlet at 'the side adjacent its bottom, an air intake pipe connectedwith the air inlet, said pipe being soy .said valve being provided withan air pas- Ailiary air Aprovided with a lateral aii` port, a piston`valve in the air pipe normally heldin iXed I position and movable bythe operator from a point beyond the air port to a point between theaii' port and the chamber, an auxintake port, a spring-pressed auxiliaryintake valve foi' closing the same, and connected inechanisinlundei thecontrol of the operator for positively closing and holding closed the'auxiliary intake valve and for movin the piston valve to the positioninteime iate the 'air port and the chamber,

substantially as described.

4. A carbureter, having, in combination, a chamber provided With a mainair inlet, a main valve for closing said air inlet, an

auxiliai'yaii' port, a pivoted auxiliary intake valve .for closing thesame, an arm A justed by (FY) mi rigidly connected; with the said valve,means under control of the operator for actuating 2v, the main valve,devices connected with said means, including a finger afiapted toenga-ee the arm connected With the auiiili y im valve to positivelyclose and hola el auxiliary valve when the main. vai? the operator noclose ghe aii mit and to be moved4 out of contact 'w arm fno render theauxiliary valve open When the main valve ie ad.' the operator to openthe aii' ivi for supplying fuel to the chamber, tially as'described.

' ERASTUS E. W'EUILEY,

Witnesses Ameno l1 Geenen it. Q'riiniivs,

